Peel and quarter the apples and cut out the core. Halve the apple quarters again and cut them into pieces. Put the apples, lemon juice, 125 g sugar, vanillin sugar and 3/4 litre water in a pot, bring to the boil, cover and simmer for 3-5 minutes, depending on the type of apple
Stir pudding powder and 5 tablespoons of water until smooth. Pour apples into a sieve, collecting the liquid. Drain apples well. Measure out 400 ml of liquid, put back into the pot, bring to the boil. Stir in the pudding powder. Bring to the boil and simmer for about 1 minute while stirring. Mix in apples. Pour into a bowl and let cool down for about 2 hours
Chop the nuts for the crumbles. Put flour, salt, 150 g sugar, egg yolk, nuts and butter in flakes in a mixing bowl. Knead with the dough hook of the hand mixer. Then work into crumbles with your hands
Put a good 2/3 of the crumbles in a greased springform pan (26 cm Ø) sprinkled with flour. Press the crumble dough into the springform pan and form a rim of about 3 cm height. Sprinkle with breadcrumbs. Spread the cooled apples evenly on top. Spread the rest of the crumbles (about 1/3) on the apples. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 55-60 minutes. If necessary, cover with aluminium foil about 15 minutes before the end of the baking time
Remove the pie from the oven and let it cool on a cake rack. Then remove from the mould. Tastes good with crème fraîche
waiting time approx. 2 hours